Hey, I have this error when I try to load game. When I double click Tomb Raider Legend.

Error to Range Table

Failed to open Bigfile.000

If anyone can please help, btw if anyone needs to know It was bought at Gamestop online and used the automatic download kind. So I didn't have to wait for it to get here.. It's been around 1 - 3 weeks and it hasn't been fixed. So if someone can please help that'll be great.. No I am not asking for piracy download cause I don't wanna be sent to jail.
Also, the game can play on the computer.